var express = require('express');
var path = require('path');
var favicon = require('static-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');
var routes = require('./routes/index');
var user = require('./routes/user');
var detail = require('./routes/detail');

var app = express();

// view engine setup
//app.set('views', path.join(__dirname, 'views'));
//app.set('view engine', 'ejs');

//注册ejs模板为html页。简单的讲，就是原来以.ejs为后缀的模板页，现在的后缀名可以//是.html了
app.engine('.html', require('ejs').__express);
//设置视图模板的默认后缀名为.html
app.set('view engine', 'html');
//设置模板文件文件夹,__dirname为全局变量,表示网站根目录
app.set('views', __dirname + '/views');

app.use(favicon());
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());
// 建议使用 128 个字符的随机字符串
app.use(session({
    resave: true,
    saveUninitialized: true,
    secret: 'abcdefghijklmnopqrstyvwxyz',
    cookie: { maxAge: 60 * 1000 }
}));
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);
app.use('/user', user);
app.use('/detail', detail);

/// catch 404 and forward to error handler
app.use(function(req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

/// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});


module.exports = app;
